Improvement in steam-engine cylinders



1-. lg. TAYLOR.

Steam-Engine Cylinder. i [Q0162 120, PatentedAprHI3,1875.

WITNESSES: WW 7 WIA 4, v

ATTORNEYS THE GRAPHIC C0.PHOT0.-LITH.39&41 PARK PLACEJLY.

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JAMES E. TAYLOR, OF WESTMINSTER, MARYLAND, ASSIGNOR TO THE TAYLORMANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN STEAM-ENGINE CYLINDERS.

Specification forming part of Letters Patent No. 162,120, dated April13, 1875; application filed -March 12, 1875.

T 0 all whom it may concern:

Be it known that I, JAMES E. TAYLOR, of YVestminster, in the county ofCarroll and State of Maryland, have invented a new and ImprovedSteam-Incased Engine- Cylinder and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawing, forming a part of thisspecification, in which Figure 1 is a side elevation 5 Fig. 2, atransverse section through line so a: of Fig. l Fig. 3, an inverted planof the cylinder; Fig. 4, plan of the steam-dome with cylinder rem oved.

This invention relates to certain improvements upon the patent grantedto Gilbert Bradford, No. 115,928, June 13, 1871; and it consists in thepeculiar construction of the steam dome, in combination with thesteam-incased cylinder, whereby the latter is relieved from the directpressure of the entire subjacent body of steam, and its tendency tobecome strained and loosened from the dome obviated, and the consequentleakage of steam prevented.

In the drawing, A represents the steamdome, which opens into and isattached to the top of the boiler 13. C is the cylinder, having anannular chamber, D, around the same, which is filled with steam toprevent condensation in the cylinder. E is the slide-valve box, havinginduction-ports a a and exhaustb. The steam-dome A, instead of beingmade open at the top, and communicating with the chamber D throughoutits entire length, so as to form a part of the dome, is made with a top,F, having a comparatively small communication, 0, with the chamber D.The cylinder is also made with a bottom, (I, that fits the top of thedome, so as to cause the openings 0 e to register, the table beingraised at the edges, so as to insure a tight joint. The object of thissmall communication between the dome and the cylinder-encompassingchamber is to prevent the uprising of the cylinder from the vastpressure of the subjacent steam, which, if the partition F isnotinterposed, soon loosens the cylinder connection, and causes aleakage of steam. The small communication 0 allows the steam admittedtherethrough to react upon the bottom-plate otithe cylinder, and therebyobviate the great upward strain which is the principal objection to thisclass of steam-engines. G is a side chamber, which is arranged in thesteam-dome, and communicates through an opening,f, with the exhaust ot'the slide-valve boX. The object of this chamber is is to utilize, in aconvenient manner, the exhaust steam by heating the feed-water, and forthis purpose I place therein the feed-water pipes H.

I am aware of the fact that it is not new to construct steam-incasedcylinders above the boiler, which communicate throughout their entirelength with the steam-dome, and I, therefore, limit my invention to thepeculiar construction which obviates the objection to which theabove-descri bed cylinders are open.

Having thus described my invention, what I claim as new is- Thesteam-dome A, having a top, F, provided with an opening, 0, incombination with a steam-incased cylinder, having a bottom plate, 61,and a corresponding opening, 6, substantially as and for the purposedescribed.

JAMES E. TAYLOR.

Witnesses:

G. E. SANGSTON, WM. D. ELDRIDGE.

